erythrocyte sedimentation rate (ESR), the rate at which red blood cells settle out in a tube of unclotted blood, expressed in millimeters per hour. Blood is collected in an anticoagulant and allowed to form a sediment in a calibrated glass column.
The Butterfly Circus (2009) The Butterfly Circus is the story of a renowned circus troupe traveling through the devastated American landscape at the height of the Great Depression, lifting the spirits of audiences ... See full summary Â».
This information shows the various causes of Butterfly rash, and how common these diseases or conditions are in the general population. This is not a direct indication as to how commonly these diseases are the actual cause of Butterfly rash, but gives a relative idea as to how frequent these diseases are seen overall.1  1 disease that is very common. 2  2 diseases that are common. 3  2 diseases that are very rare.his is not a direct indication as to how commonly these diseases are the actual cause of Butterfly rash, but gives a relative idea as to how frequent these diseases are seen overall. 1  1 disease that is very common.